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August weather forecast in Waterloo

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Sun

Sunday

Mon

Monday

Tue

Tuesday

Wed

Wednesday

Thu

Thursday

Fri

Friday

Sat

Saturday

27 July, sun

	728 mmHg		76%
	4.6 m/s

27 July, Sunday. day, 25°; night, 16°; rain

28 July, mon

	728 mmHg		75%
	4.69 m/s

28 July, Monday. day, 25°; night, 16°; rain

29 July, tue

	728 mmHg		73%
	4.6 m/s

29 July, Tuesday. day, 25°; night, 16°; rain

30 July, wed

	729 mmHg		73%
	4 m/s

30 July, Wednesday. day, 24°; night, 15°; clear

31 July, thu

	729 mmHg		74%
	4 m/s

31 July, Thursday. day, 25°; night, 15°; clear

1 August, fri

	729 mmHg		74%
	4.1 m/s

1 August, Friday. day, 25°; night, 16°; clear

2 August, sat

	729 mmHg		75%
	4.19 m/s

2 August, Saturday. day, 25°; night, 16°; rain

3 August, sun

	729 mmHg		76%
	4.19 m/s

3 August, Sunday. day, 25°; night, 16°; rain

4 August, mon

	729 mmHg		75%
	4.1 m/s

4 August, Monday. day, 25°; night, 16°; rain

5 August, tue

	729 mmHg		73%
	4.3 m/s

5 August, Tuesday. day, 24°; night, 15°; clear

6 August, wed

	729 mmHg		74%
	4.6 m/s

6 August, Wednesday. day, 24°; night, 15°; clear

7 August, thu

	729 mmHg		76%
	4.3 m/s

7 August, Thursday. day, 24°; night, 15°; rain

8 August, fri

	729 mmHg		75%
	4.5 m/s

8 August, Friday. day, 25°; night, 16°; partly cloudy

9 August, sat

	729 mmHg		74%
	4.5 m/s

9 August, Saturday. day, 25°; night, 15°; clear

10 August, sun

	728 mmHg		77%
	4.5 m/s

10 August, Sunday. day, 24°; night, 16°; rain

11 August, mon

	728 mmHg		76%
	4.5 m/s

11 August, Monday. day, 24°; night, 15°; rain

12 August, tue

	729 mmHg		76%
	4.3 m/s

12 August, Tuesday. day, 24°; night, 15°; rain

13 August, wed

	729 mmHg		75%
	4 m/s

13 August, Wednesday. day, 24°; night, 15°; partly cloudy

14 August, thu

	729 mmHg		73%
	4.1 m/s

14 August, Thursday. day, 24°; night, 14°; partly cloudy

15 August, fri

	729 mmHg		74%
	4.19 m/s

15 August, Friday. day, 24°; night, 14°; clear

16 August, sat

	730 mmHg		75%
	4.5 m/s

16 August, Saturday. day, 24°; night, 15°; rain

17 August, sun

	729 mmHg		77%
	4.69 m/s

17 August, Sunday. day, 24°; night, 15°; partly cloudy

18 August, mon

	729 mmHg		76%
	4.3 m/s

18 August, Monday. day, 24°; night, 15°; rain

19 August, tue

	729 mmHg		75%
	4.1 m/s

19 August, Tuesday. day, 23°; night, 14°; clear

20 August, wed

	729 mmHg		76%
	4.5 m/s

20 August, Wednesday. day, 23°; night, 13°; partly cloudy

21 August, thu

	729 mmHg		77%
	4.69 m/s

21 August, Thursday. day, 23°; night, 15°; partly cloudy

22 August, fri

	729 mmHg		77%
	4.5 m/s

22 August, Friday. day, 23°; night, 14°; partly cloudy

23 August, sat

	730 mmHg		76%
	4.5 m/s

23 August, Saturday. day, 23°; night, 14°; clear

24 August, sun

	730 mmHg		75%
	4.4 m/s

24 August, Sunday. day, 24°; night, 14°; clear

25 August, mon

	730 mmHg		77%
	4.4 m/s

25 August, Monday. day, 24°; night, 15°; overcast

26 August, tue

	730 mmHg		79%
	4.3 m/s

26 August, Tuesday. day, 23°; night, 15°; overcast

27 August, wed

	730 mmHg		79%
	4.4 m/s

27 August, Wednesday. day, 23°; night, 15°; rain

28 August, thu

	730 mmHg		77%
	4.5 m/s

28 August, Thursday. day, 23°; night, 15°; clear

29 August, fri

	729 mmHg		78%
	4.4 m/s

29 August, Friday. day, 24°; night, 14°; rain

30 August, sat

	730 mmHg		76%
	4.5 m/s

30 August, Saturday. day, 23°; night, 14°; clear

31 August, sun

	730 mmHg		75%
	4.4 m/s

31 August, Sunday. day, 23°; night, 14°; clear

1 September, mon

	731 mmHg		75%
	4.1 m/s

1 September, Monday. day, 23°; night, 13°; clear

2 September, tue

	730 mmHg		76%
	4.5 m/s

2 September, Tuesday. day, 23°; night, 14°; clear

3 September, wed

	729 mmHg		76%
	4.3 m/s

3 September, Wednesday. day, 23°; night, 14°; clear

4 September, thu

	730 mmHg		76%
	4.6 m/s

4 September, Thursday. day, 23°; night, 14°; partly cloudy

5 September, fri

	731 mmHg		76%
	4.4 m/s

5 September, Friday. day, 23°; night, 13°; clear

6 September, sat

	731 mmHg		76%
	4.3 m/s

6 September, Saturday. day, 23°; night, 13°; rain

Average data for 10 years

Waterloo August

11

sunny days

11

days with precipitation

5

cloudy days

11 sunny days; 11 days with precipitation; 5 cloudy days;

76

%

air humidity

2.9

m/s

WindSW

80

mm of precipitation

(8% of annual average)

air humidity 76%; 80 millimeters of precipitation (8% of annual average); Wind south-westerly 2.9 Meters per second

Weather graphs for August

TemperaturePrecipitation chance, %Humidity, %Wind, m/sPressure, mmHg

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

S

S

SW

SW

SW

S

S

SW

SW

SW

S

S

SW

S

S

SW

SW

SW

1

Average data for 10 years

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Daytime temperature

Night-time temperature

Cities near you

Toronto
Detroit
Pittsburgh
Cleveland
Macedonia
Burlington
Buffalo
Milan
London

Cities with similar weather in August

Lisbon
Porto
Genoa
Santa Cruz de Tenerife
Funchal
Seattle
Las Palmas de Gran Canaria
Playa de las Americas
Montreal

The weather forecast for August 2025 is based on historical data from the past 10 years.

In August, the weather in Waterloo is typically warm. Average daily high temperature in August is about 24 degrees above zero. On average, Waterloo has 11 rainy, 11 sunny, 7 partly cloudy, and 2 cloudy days in August. The rains are usually moderate.

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